i get something like this, but it's in my ribs (they'll hurt like i was sucker punched) - once that pain goes away, i get a cough for a day then it's gone. I know i drew in way too much smoke that session - I've been retraining myself NOT to draw deeply, only a few deep hits in a session. Makes the whole session last longer and the shisha not burn as fast. Plus... no side effects. Hajo has got a point (I changed the way I smoke because of an eariler post I made awhile ago about the same type of issue).